T5700 is kool

The T5700 is a Mini ITX with a 256 MB Disk on Module (DoM, Flash memory that plugs into a 44 pin IDE connector)
It will boot off a USB key to allow you to load another OS on the flash. Alternatively remove the DoM and put in a 2.5" HDD, you'll also need a 44pin IDE cable.

If i could convince the client to give me the T5700 I'd have it in my car.